The amount of calories you consume on a daily basis determines whether or not your diet is successful, but it may be hard to understand what these numbers mean and how they affect your body. For the human body to function properly, we need an adequate intake of energy in the form of food calories.
This article will address everything: What Is A Calorie? The Hows, Whats, And Wheres Of Calories In Food. When you finish reading you will know about calories and how they work in your everyday diet.
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Contents
Get to know What Is A Calorie? The Hows, Whats, And Wheres Of Calories In Food

When people talk about ‘calories,’ they are referring specifically to kilocalories—the unit used when measuring caloric content. The average person will burn approximately 2170 kcals during one whole year and this depends largely on weight because heavier individuals tend to require more energy.
Heavy people require more because heat loss is proportional depending on mass and surface area. Other factors like age can also contribute to this equation.
A calorie is energy used to increase the temperature of one kilogram of water by 1 degree Celsius (1.8 degrees Fahrenheit). There are important facts you need to know about calories: What they are, where they come from, and how many you should consume each day.
What Is A Calorie?
A calorie is a measure of the energy in food. When you eat, your body turns the calories from food into energy to fuel your life. Calories from food are measured in units called kilocalories or “kcal.” It is a type of measurement that shows the amount of energy, not just how much weight. Calories measure the number of calories you need to get through your day. The human body needs more than 100g per day for basic functioning, so there should be an intake and output balance at around this level.
Some people eat more than they need for their body and physical activity level, and that’s when calories can accumulate and lead to weight gain. Other people don’t get enough calories and can have problems with fatigue or difficulty concentrating. The amount of calories you need every day depends on age, sex, muscle mass, height, weight, and physical activity level. For instance, an 18-year-old male who is 5’8″ needs around 2,000 to 2,400 calories per day for “maintenance” or staying at the same weight. A 30-year-old woman who is 5’5″ needs around 1,600 to 1,800 calories per day for maintenance.
The Hows Of Calories In Food
First, the easiest way to understand calories is by examining the three main ways they’re found in food: The number of calories per gram, the number of calories per serving, and the total number of calories in a food.
The first thing you need to know about understanding calories is that there are three different measurements for them: The number of calories per gram, the number of calories per serving, and the total number of calories in a food.
Calories per gram are how many calories are in one gram of a given food. For example, an average banana has 94 grams and contains 100-120 calories.
This means there are 9-12 calories per gram. Another good example would be peanuts. An ounce (or 28 grams) of peanuts contains 160-200 calories. That means there are 8-10 calories per gram. The more common measure of calories per gram is kilocalories. A food calorie (cal) or nutritional “Calorie” with a capital C, always refers to the thermochemical work unit and thus represents the amount of energy needed to increase 1 kg o water’s temperature by 1 °C. But when this same term is used for small amounts, such as in nutrition labels on individual packages or items within shops, it usually means kilocalories—or rather 100 kcal = 1000 cal: that which we call Calorie with a lowercase c would be 200-250.
Next, let’s talk about servings. Most people have no idea how many servings are in their food or drink containers before they eat or drink them! When you’re going to eat or drink something, it’s important to know that most common restaurant items contain two servings (a small container is considered one). So when you order lemonade at your favorite fast-food restaurant, that 16-ounce cup is two servings (or 32 ounces total). Likewise, with those large 32-ounce sodas we all love–those are four servings! Lastly on this topic is understanding how many total calories are in your meal
What And Where Of Calories In Food
There are three types of calories:
Calories from fat, come from foods like nuts, salad dressings, and oils.
Calories from carbohydrates, which come from foods like grains, fruits, and vegetables.
Calories from protein, which come from foods like chicken breast and almonds.
How Many Calories Should You Consume Each Day?
If you are trying to lose weight, it is important to know how many calories you should consume each day. A generally accepted number of calories for someone who is trying to lose weight is 1200-1400 calories per day. The average number of calories we need to maintain our weight is 2500-3000 per day.
Calories are the energy that provides us with the fuel necessary to perform everyday activities and there are two ways we get them: through our diet and exercise. If we consume too many calories but do not take any exercise to burn them off, this can lead to weight gain. The opposite is also true: if we eat a low-calorie diet and don’t move at all for an extended period then our bodies will start consuming their muscle tissue for energy instead of burning fat. We need a certain amount of energy every day for our body to function properly, and the easiest way for our body to get this energy is through food.
How Much Of Each Food Group Should You Eat?
You may already know that there are four major food groups: vegetables, fruits, grains, and protein. But have you ever wondered how much of each group you need to be eating?
The USDA recommends that adults should be consuming two cups of vegetables a day (or eight servings), three cups of fruit (or twelve servings), and at least three servings of grains every day. Protein is a little bit trickier because it can come from so many different sources. The USDA recommends getting about 5-6 ounces per day– or the size of a deck of cards.
Trying to cram all this information into your head can seem overwhelming at first. And if you’ve been struggling with your diet for a while, it’s probably hard to make sense of what these numbers mean for you.
However, there is some good news. If you break down the calculations into daily averages, everything becomes more manageable! An average person will most likely consume one cup of fruit, one cup of vegetables, and two servings of protein in one day– which is perfect for keeping on track with the USDA recommendations!

Conclusion
Knowing how many calories you consume can help you achieve your weight loss goals. For those who want to lose weight, it is recommended that they consume less than two thousand calories a day. The recommended intake of calories that a person should consume every day depends on their age, sex, weight, and level of physical activity.
References
- What Is A Calorie? How To Use Calorie Counts To Meet Goals
https://www.verywellfit.com/what-is-a-calorie-and-why-should-i-care-3496238
- Calories: Requirements, Health Needs, And Function – Medical
https://www.medicalnewstoday.com/articles/263028
- What Are Calories? | Live Science
https://www.livescience.com/52802-what-is-a-calorie.html
- Kcal Vs. Calories: Differences And How To Convert – Healthline